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Hello. I'm a new on this forum. I would like to show my last project. This is a device 3 in 1: bikecomputer + flashlight + powerbank
Features:
1. Supply from two Li-Ion Cells 18650 Robiton 3400 mAh each
2. Embedded battery charger
3. Two bulbs. One has 10deg lens for far distance light. Other...
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